Dynamic measurement by digital holographic interferometry based on complex phasor method

C. J. Tay; C. Quan; Wen Chen

doi:10.1016/j.optlastec.2008.05.005

Dynamic measurement by digital holographic interferometry based on complex phasor method

C. J. Tay, C. Quan, Wen Chen

Research output: Journal article publication › Journal article › Academic research › peer-review

12 Citations (Scopus)

Abstract

In this paper, complex phasor (CP) method is employed in digital holographic interferometry. Unlike commonly used digital phase subtraction (DPS), the proposed technique processes a CP instead of phase. It is shown that the results obtained by directly filtering the phase produce large errors. It is demonstrated that the phase is not a signal but rather a property of a signal. In addition, the results obtained by the CP method are also compared with those obtained by conventional sine/cosine transformation method.

Original language	English
Pages (from-to)	172-180
Number of pages	9
Journal	Optics and Laser Technology
Volume	41
Issue number	2
DOIs	https://doi.org/10.1016/j.optlastec.2008.05.005
Publication status	Published - 1 Jan 2009
Externally published	Yes

Keywords

Complex phasor
Digital holographic interferometry
Dynamic measurement

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

More information

10.1016/j.optlastec.2008.05.005

Cite this

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AU - Quan, C.

AU - Chen, Wen

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N2 - In this paper, complex phasor (CP) method is employed in digital holographic interferometry. Unlike commonly used digital phase subtraction (DPS), the proposed technique processes a CP instead of phase. It is shown that the results obtained by directly filtering the phase produce large errors. It is demonstrated that the phase is not a signal but rather a property of a signal. In addition, the results obtained by the CP method are also compared with those obtained by conventional sine/cosine transformation method.

AB - In this paper, complex phasor (CP) method is employed in digital holographic interferometry. Unlike commonly used digital phase subtraction (DPS), the proposed technique processes a CP instead of phase. It is shown that the results obtained by directly filtering the phase produce large errors. It is demonstrated that the phase is not a signal but rather a property of a signal. In addition, the results obtained by the CP method are also compared with those obtained by conventional sine/cosine transformation method.

KW - Complex phasor

KW - Digital holographic interferometry

KW - Dynamic measurement

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DO - 10.1016/j.optlastec.2008.05.005

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ER -

Dynamic measurement by digital holographic interferometry based on complex phasor method

Abstract

Keywords

ASJC Scopus subject areas

More information

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